[1]史占飞,熊源泉,谢红银,等.尿素、碳酸氢铵/添加剂同时脱硫脱硝试验研究[J].东南大学学报(自然科学版),2011,41(3):591-596.[doi:10.3969/j.issn.1001-0505.2011.03.031]
 Shi Zhanfei,Xiong Yuanquan,Xie Hongyin,et al.Experimental investigation on simultaneous removal of SO2 and NOx by solutions of urea and ammonium bicarbonate/additives[J].Journal of Southeast University (Natural Science Edition),2011,41(3):591-596.[doi:10.3969/j.issn.1001-0505.2011.03.031]
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尿素、碳酸氢铵/添加剂同时脱硫脱硝试验研究()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
41
期数:
2011年第3期
页码:
591-596
栏目:
化学化工
出版日期:
2011-05-20

文章信息/Info

Title:
Experimental investigation on simultaneous removal of SO2 and NOx by solutions of urea and ammonium bicarbonate/additives
作者:
史占飞熊源泉谢红银张吉超
(东南大学能源与环境学院,南京 210096)
Author(s):
Shi ZhanfeiXiong YuanquanXie HongyinZhang Jichao
(School of Energy and Environment, Southeast University, Nanjing 210096, China)
关键词:
尿素碳酸氢铵添加剂脱硫脱硝
Keywords:
urea ammonium bicarbonate additive desulfurization denitrification
分类号:
T301
DOI:
10.3969/j.issn.1001-0505.2011.03.031
摘要:
在鼓泡反应装置上进行了尿素、碳酸氢铵/三乙醇胺溶液同时脱硫脱硝的试验研究,比较尿素和碳酸氢铵的脱硫脱硝性能,试验分别对液位、吸收剂组成以及SO2体积分数等参数对脱硝效率的影响规律进行了研究.结果表明:液位、吸收液中尿素/碳酸氢铵的比例及SO2入口浓度对NOx的脱除效率均有重要的影响,液位在459 mm时2种吸收液的脱硝效率最高; 增加多元溶剂中碳酸氢铵质量浓度不利于NOx的脱除,而5%尿素、5%碳酸氢铵/三乙醇胺(0.015%)多元溶剂的脱硝效率仅比10%的尿素/三乙醇胺(0.015%)溶液低约9%,脱硝效率仍可达63%以上,脱硫效率高达97%以上,但其吸收剂成本比后者低近30%; SO2的存在起到了协同促进作用,反应中生成的亚硫酸根离子对NOx具有还原作用,使得2种吸收液的脱硝效率均提高了约3%.
Abstract:
Experimental research of simultaneous removal of NOx and SO2 with aqueous urea and ammonium bicarbonate/additives solution was carried out in a bubbling reactor, where the effects of two different aqueous (urea and ammonium bicarbonate) on the NOx removal characteristics were investigated. A series of experimentations were carried out to study the effect of operation parameters, such as liquid level, sorbent composition and SO2 concentration. The results show that liquid level, mass ratio of urea and ammonium bicarbonate in mixed solution and SO2 concentration have a significant effect on the removal efficiency of NOx. Two absorbents have the highest denitrification efficiency when liquid level reaches 459 mm. Increasing the proportion of ammonium bicarbonate in multiple solvent is unfavorable to NOx removal. The average denitrification efficiency with solution of 5% urea+5% ammonium bicarbonate/triethanolamine(0. 015%) reduces by only 9% compared with 10%urea/triethanolamine(0. 015%), and the removal efficiencies of NOx and SO2 can still reach 63% and 97% respectively, while the costs of absorbent decrease by nearly 30%. The existence of SO2 has synergistic effect on the absorption of NOx, the sulfite ions play reductive role on NOx which make the denitrification efficiencies of two absorbents increase about 3%.

相似文献/References:

[1]张典宁,周晓东.氰尿酸的合成[J].东南大学学报(自然科学版),1996,26(3):47.[doi:10.3969/j.issn.1001-0505.1996.03.010]
 Zhang Dianning,Zhou Xiaodong.Synthesis of Cyanuric Acid[J].Journal of Southeast University (Natural Science Edition),1996,26(3):47.[doi:10.3969/j.issn.1001-0505.1996.03.010]

备注/Memo

备注/Memo:
作者简介:史占飞(1985—),男,硕士;熊源泉(联系人),男,博士,教授,博士生导师,yqxiong@seu.edu.cn.
基金项目:国家高技术研究发展计划(863计划)资助项目(2009AA05Z304).
引文格式: 史占飞,熊源泉,谢红银,等.尿素、碳酸氢铵/添加剂同时脱硫脱硝试验研究[J].东南大学学报:自然科学版,2011,41(3):591-596.[doi:10.3969/j.issn.1001-0505.2011.03.031]
更新日期/Last Update: 2011-05-20